20 research outputs found
Digital generation of a reference signal for adaptive arrays applications (mobile radio)
No full textA low-cost experimental adaptive array built in the UHF band (900 MHz) for a minimum response time in interference cancellation
No full textMulti path Model for Power Line Communication Channel in the Frequency Range of 1MHz-30MHz
No full text
Power Amplifier Conception Challenges in UHF and VHF Transmitters
No full textInternational audienceUHF transmitters (225 MHz - 400 MHz) and VHF (108 - 117MHz) in aeronautical domain are among the most strict telecommunications equipments. ICAO (International Civil Aviation Organization) forcasts 4% traffic growth over the coming 15 years. Due to this evolution, the data exchange between the planes and the infrastructure increases more and more resulting in a saturation of the frequency bands allocated to this service. The main purpose of this paper is to describe Power Amplifier (PA) conception challenges. Distant noise (to carrier) issue is resolved by the right PA's structure choice. Reliable and well-chosen linearization method is necessary in close noise (to carrier) significant reduction
Boucle cartésienne numérique pour la conception d'un émetteur radio dans le contexte des communications aéronautiques
No full textNational audienc
Power Amplifier Conception Challenges in UHF and VHF Transmitters
No full textInternational audienceUHF transmitters (225 MHz - 400 MHz) and VHF (108 - 117MHz) in aeronautical domain are among the most strict telecommunications equipments. ICAO (International Civil Aviation Organization) forcasts 4% traffic growth over the coming 15 years. Due to this evolution, the data exchange between the planes and the infrastructure increases more and more resulting in a saturation of the frequency bands allocated to this service. The main purpose of this paper is to describe Power Amplifier (PA) conception challenges. Distant noise (to carrier) issue is resolved by the right PA's structure choice. Reliable and well-chosen linearization method is necessary in close noise (to carrier) significant reduction
Power Amplifier Conception Challenges in UHF and VHF Transmitters
No full textInternational audienceUHF transmitters (225 MHz - 400 MHz) and VHF (108 - 117MHz) in aeronautical domain are among the most strict telecommunications equipments. ICAO (International Civil Aviation Organization) forcasts 4% traffic growth over the coming 15 years. Due to this evolution, the data exchange between the planes and the infrastructure increases more and more resulting in a saturation of the frequency bands allocated to this service. The main purpose of this paper is to describe Power Amplifier (PA) conception challenges. Distant noise (to carrier) issue is resolved by the right PA's structure choice. Reliable and well-chosen linearization method is necessary in close noise (to carrier) significant reduction
